APA引文

Cannon, A. J., & Nayall, M. W. (1949). The Annie J. Cannon memorial volume of the Henry Draper extension. Astronomical Observatory of Harvard College.

芝加哥风格引文

Cannon, Annie J., 与 Margaret Walton Nayall. The Annie J. Cannon Memorial Volume of the Henry Draper Extension. Cambridge, Mass.: Astronomical Observatory of Harvard College, 1949.

MLA引文

Cannon, Annie J., 与 Margaret Walton Nayall. The Annie J. Cannon Memorial Volume of the Henry Draper Extension. Astronomical Observatory of Harvard College, 1949.